Like the planets tracing their various orbits around the Sun, the rings on this watch each move with different rotational speeds to indicate the time.
The planets trace rings around the Sun, each one completing a full orbit in ...Like the planets tracing their various orbits around the Sun, the rings on this watch each move with different rotational speeds to indicate the time.
The planets trace rings around the Sun, each one completing a full orbit in a different amount of time in relation to its distance from the Sun. Our most important measurement of time, the year, is based on this full rotation around the Sun. In fact, all our major units of time (day, month, year) are based on different rotation periods.
The three concentric circles rotate clockwise with each gap in the circle communicating the precise time. The hour, minute and seconds are defined by the outer, middle and inner rings respectively. The diameter is 33 mm.

Sure to please the space aficianado. This clock's black face is silk screened with planetary bodies and their orbits, all centered around the sun. I can see it spurring debates over Pluto's planetary status, and what space even re...Sure to please the space aficianado. This clock's black face is silk screened with planetary bodies and their orbits, all centered around the sun. I can see it spurring debates over Pluto's planetary status, and what space even really is. Great housewarming gift for space-people or wall decoration for kids.